Chosen Solution

I have a RYOBI Angle Grinder and the battery life does not last long, and is not very powerful. Is it possible to use a more powerful battery?

Yes you can! RYOBI has created an entire line of batteries to use with their ONE+ line of power tools. Simply click on the link below. From here you can choose which new battery you want for your grinder, particularly the powerful “18V Lithium+” battery. RYOBI ONE+ Product Page w/ Parts